This Honeywell F100B1024 is strictly the boot (cabinet) for the air cleaner media filter. Does not include the media filter or airwatch indicator. If you need a complete media air cleaner, you will need to order the F100F models in that size. Please note that not all F100F units come with media air filters and airwatch indicators. Product Specifications | Description | 4 inch extended Entry level Media air cleaner | | Dimensions (in.) | 20 in. x 20 in. | | Dimensions (mm) | 508 mm x 508 mm | | Airflow Max.-Capacity (cfm) | 1400 cfm | | Airflow Max.-Capacity (m³/hr) | 2380 m³/hr | | Efficiency Standard | Efficiency ratings are based on American Society of Heating, Refrigerating and Air-Conditioning Engineers Standard 52.2-1999. | | Efficiency Standard | Efficiency ranges are defined for small particles, E1=0.3 to 1.0 microns; medium particles, E2=1.0 to 3.0 microns; and large particles, E3=3.0 to 10.0 microns. | | Replacement Filters | FC100A1011, FC200E1011 | | Additional Features | Media air cleaner boot. Does not include FC100A/FC200E Filter or AIRWATCH indicator. | | Type or Air Cleaner | Media Air Cleaner | | Approvals, Underwriters Laboratories Inc | Filter Element: UL Listed, UL900, Class 2 | |